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Max Wolf (1863 - 1932)
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Maximilian Franz Joseph Cornelius Wolf (June 21, 1863 - October 3, 1932) was a German astronomer and a pioneer in the field of astrophotography. Read more
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Jean Chacornac (1823 - 1873)
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Jean Chacornac (June 21, 1823 - September 6, 1873) was a French astronomer. The asteroid 1622 Chacornac and the crater Chacornac on the Moon are named in his honour. Read more
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Dr. Ulf Dietrich Merbold
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Dr. Ulf Dietrich Merbold (born June 20, 1941) is the first West German citizen and second German native to fly in space. He is also the first member of the European Space Agency Astronaut Corps to participate in a spaceflight mission. Read more
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John Stefanos Paraskevopoulos (1889 - 1961)
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John Stefanos Paraskevopoulos (June 20, 1889 - March 15, 1961) was a Greek/South African astronomer. He co-discovered a couple of comets. The crater Paraskevopoulos on the Moon is named after him. Read more
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Blaise Pascal (1623 - 1662)
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Blaise Pascal (June 19, 1623 - August 19, 1662), was a French mathematician, physicist, inventor, writer and Catholic philosopher. He was a child prodigy who was educated by his father, a Tax Collector in Rouen. Pascal's earliest work was in the natural and applied sciences where he made important...
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David B. Healy (1936 - 2011)
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David B. Healy (1936 - 2011) was an American astrophotographer and asteroid discoverer who is known for his contributions to Burnham's Celestial Handbook. Read more
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Anania Shirakatsi (610 - 685)
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Anania Shirakatsi (also known as Ananias of Shirak; 610 - 685) was an Armenian mathematician, astronomer and geographer. He is commonly attributed to having written the Geography (Ashkharhatsuyts, in Armenian). Read more
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Antonio Abetti (1846 - 1928)
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Antonio Abetti (June 19, 1846 - February 20, 1928) was an Italian astronomer. Abetti mainly worked in positional astronomy and made many observations of minor planets, comets, and star occultations. He refurbished the observatory at Arcetri by installing a new telescope. In 1874 he was part of an...
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Jacobus Cornelius Kapteyn (1851 - 1922)
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Jacobus Cornelius Kapteyn, (January 19, 1851, Barneveld, Gelderland - June 18, 1922) was a Dutch astronomer, best known for his extensive studies of the Milky Way and as the first discoverer of evidence for galactic rotation. Read more
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Robert Burnham, Jr. (1931 - 1993)
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Robert Burnham, Jr. (June 16, 1931 - March 20, 1993) was an American astronomer. He is best known for writing the classic three-volume Burnham's Celestial Handbook. Read more
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Peter Stoner (1888 - 1980)
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Peter Stoner (June 16, 1888 - March 21, 1980) was Chairman of the Departments of Mathematics and Astronomy at Pasadena City College until 1953; Chairman of the science division, Westmont College, 1953-57; Professor Emeritus of Science, Westmont College; Professor Emeritus of Mathematics and A...
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Jean-François Pilâtre de Rozier (1754 - 1785)
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Jean-François Pilâtre de Rozier (30 March 1754 - 15 June 1785) was a French chemistry and physics teacher, and one of the first pioneers of aviation. He and the Marquis d'Arlandes made the first manned free balloon flight on 21 November 1783, in a Montgolfier balloon. He later died when his balloon cr...
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Paul Guldin (1577 - 1643)
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Paul Guldin (original name Habakkuk Guldin) (June 12, 1577 - November 3, 1643) was a Swiss Jesuit mathematician and astronomer. He discovered the Guldinus theorem to determine the surface and the volume of a solid of revolution. Read more
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Johann Georg Palitzsch (1723 - 1788)
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Johann Georg Palitzsch (June 11, 1723 - February 21, 1788) was a German astronomer who became famous for recovering Comet 1P/Halley (better known as Halley's Comet or Comet Halley) on Christmas Day, 1758. Read more
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Dr Duncan I. Steel
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Dr Duncan I. Steel, BSc, MSc, DIC, PhD, FRAS (born 11 June 1955), is a British/Australian scientist born in Midsomer Norton, Somerset. He is a world-renowned space science authority who has worked with NASA to assess the threat of comet and asteroid collisions and investigate technologies to aver...
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